1. Family: Poaceae Barnhart
    1. Genus: Calamagrostis Adans.
      1. Calamagrostis nyingchiensis (P.C.Kuo & S.L.Lu) Paszko

        This species is accepted, and its native range is S. Tibet to China (SW. Sichuan).

    [GB]
    Habit
    Perennial; caespitose. Culms erect; 50-80 cm long; 2-3 -noded. Lateral branches lacking. Leaf-sheaths smooth, or antrorsely scabrous. Ligule an eciliate membrane; 4-5 mm long. Leaf-blades flat, or involute; 10-15 cm long; 1-3 mm wide.
    Inflorescences
    Inflorescence a panicle. Panicle open; ovate; 7-12 cm long; 5-8 cm wide. Primary panicle branches ascending, or spreading; 3-6 -nate; whorled at most nodes; 2-8 cm long. Panicle branches arcuate; scabrous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels curved; scaberulous.
    Spikelets
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 5-7 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus bearded. Floret callus hairs 0.33 length of lemma.
    Fertile
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 5-7 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus bearded. Floret callus hairs 0.33 length of lemma.
    Glume
    Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma; gaping. Lower glume lanceolate; 5-7 mm long; 1 length of upper glume; membranous; purple; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume surface scabrous. Lower glume apex acuminate. Upper glume lanceolate; 5-7 mm long; 1.6-2 length of adjacent fertile lemma; membranous; purple; 1-keeled; 3 -veined. Upper glume surface scabrous. Upper glume apex acuminate.
    Florets
    Fertile lemma oblong; 3 mm long; membranous; without keel; 5 -veined. Lemma apex dentate; 4 -fid; awned; 1 -awned. Principal lemma awn dorsal; arising 0.66-0.75 way up back of lemma; straight; 4 mm long overall. Palea 0.66 length of lemma; hyaline; 2 -veined. Rhachilla extension 1-1.5 mm long; villous; with 3.5-4 mm long hairs.
    Flowers
    Anthers 3; 1 mm long.
    Distribution
    Asia-temperate: China.
    Reference
    Aveneae. Fl China 2005.

    Distribution

    Native to:

    China South-Central, Tibet

    Calamagrostis nyingchiensis (P.C.Kuo & S.L.Lu) Paszko appears in other Kew resources:

    First published in Polish Bot. J. 61: 53 (2016)

    Accepted by

    • Govaerts, R. (2019). World Checklist of Vascular Plants (WCVP Database) The Board of Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Kew Backbone Distributions
    • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.

    Sources

    GrassBase - The Online World Grass Flora
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0